What is 25/157.5 in long division! Please answer now

—the graph shows how fast a strand of human hair grows. how many inches would the hair have grown in 5 months

If you can solve all of these i will give ! - 4% of 190 - 4% of 162.5 - 4% of 140 - a 4% increase from 155.1 - a 4% increase from 159.8

What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)